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Priority claimed from FI883463Aexternal-prioritypatent/FI883463A/fi
Application filed by Veikko IhatsufiledCriticalVeikko Ihatsu
Priority to FI893394ApriorityCriticalpatent/FI86281C/fi
Publication of FI893394A0publicationCriticalpatent/FI893394A0/fi
Publication of FI893394ApublicationCriticalpatent/FI893394A/fi
Publication of FI86281BpublicationCriticalpatent/FI86281B/fi
Application grantedgrantedCritical
Publication of FI86281CpublicationCriticalpatent/FI86281C/fi